[   27.490700][  T119] su (119) used greatest stack depth: 24104 bytes left
[   27.490719][  T119] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   27.490721][  T119] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 119, name: su
[   27.490723][  T119] preempt_count: 2, expected: 0
[   27.490724][  T119] RCU nest depth: 0, expected: 0
[   27.490725][  T119] locks held by su/119: 5, last CPU#1: